We have made major changes in Hibernate reverse engineering from ME 4.1M2.
On the second page of the RE wizard, please choose “Java types” for the Type Mapping radio, that should get you what you need.
If you still require further customization, use page 3 to specify exactly the type you need.
These settings are saved so that you do not need to re-enter them each time you go through the Reverse Engineering process.
Sorry for the inconvenience,
Best,
Brian.